1234304431 has 4 divisors (see below), whose sum is σ = 1306910592. Its totient is φ = 1161698272.

The previous prime is 1234304417. The next prime is 1234304471. The reversal of 1234304431 is 1344034321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1344034321 = 7 ⋅192004903.

It is a cyclic number.

It is not a de Polignac number, because 1234304431 - 2¹⁷ = 1234173359 is a prime.

It is a super-2 number, since 2×1234304431² = 3047014856772467522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1234304396 and 1234304405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234304411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36303055 + ... + 36303088.

It is an arithmetic number, because the mean of its divisors is an integer number (326727648).

Almost surely, 2^1234304431 is an apocalyptic number.

1234304431 is a deficient number, since it is larger than the sum of its proper divisors (72606161).

1234304431 is an equidigital number, since it uses as much as digits as its factorization.

1234304431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72606160.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1234304431 is about 35132.6689990954. The cubic root of 1234304431 is about 1072.6896641514.

Adding to 1234304431 its reverse (1344034321), we get a palindrome (2578338752).

The spelling of 1234304431 in words is "one billion, two hundred thirty-four million, three hundred four thousand, four hundred thirty-one".